Seed variability of Sisymbrium polymorphum (Murray) Roth (Brassicaceae) across the Central Palaearctic

By

Rewicz, Agnieszka
Torbicz, Weronika
Zavialova, Liudmyla
Kucher, Oksana
Shevera, Myroslav V.
Rewicz, Tomasz
Kiedrzyński, Marcin
Bomanowska, Anna

Type

Article

Date of Publication

2022

Original Publication

PhytoKeys

Volume

206

Pages

87--107

Subjects

3D ultrastructure , Brassicaceae , latitude variability , micromorphology , scanning electron microscopy (SEM) , seed coat , ta­xonomy

Contributed by

Pensoft Publishers

Language

English

Published by

Sofia, Bulgaria Pensoft Publishers [2010]-

Identifiers

DOI: https://doi.org/10.3897/phytokeys.206.85673

 

Abstract

This study presents the results of investigation of the micromorphology and variability of Sisymbrium polymorphum seeds collected in 49 localities in the core range and isolated populations of Central Europe, Eastern Europe and Central Asia. In addition, we compared the ultrastructure of the seeds of S. polymorphum with that of the closely-related species S. loeselii and S. linifolium. The seeds were measured with a stereoscopic microscope and a biometric programme (ImageJ) and micromorphological studies were performed by scanning electron microscopy (SEM). The seed variability showed intraspecific stability of the ultrastructure and low variability of metric features within the studied range. Studied species showed differences in the ultrastructure, which will be valuable for diagnostic purposes. We present and describe, for the first time, the ultrastructure of S. polymorphum seeds.